Telephone base



FIG. 1 is a front, partial top and right side perspective view of a telephone base showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a rear elevational view thereof; and

FIG. 4 is a bottom plan view thereof.

The broken line showing of sundry apertures is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a telephone base, as shown and described. 